<!doctype html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <title></title> 
</head>
<body>
<script type="text/javascript">
	
	//substr
	//substring
	//length
	//slice
	//charAt
	//indexOf
	//lastIndexOf
	//concat
	//toUpperCase
	//toLowerCase
	//replace
	//split

	//push
	//splice
	//shift
	//unshift
	//pop
	//reverse
	//sort
	//length
	//join
	//concat
	//slice
	//indexOf
	//lastIndexOf
</script>
</body>
</html>